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(26 April 2012) -- At the headquarters of the Russian Federal Space Agency, the head of Roscosmos, Vladimir Popovkin (center left), and other Russian space officials spend time with the Expedition 31 prime and backup crew members April 26, 2012 prior to their departure May 2 for their launch site in Baikonur, Kazakhstan. On the right from top to bottom are Expedition 31 backup crewmembers Kevin Ford, Evgeny Tarelkin and Oleg Novitskiy, and prime crewmembers -- Soyuz Commander Gennady Padalka (right center), flight engineer Sergei Revin and NASA Flight Engineer Joe Acaba. Padalka, Revin and Acaba are scheduled to launch to the International Space Station May 15 in their Soyuz TMA-04M spacecraft. Photo credit: NASA

(26 April 2012) -- At the headquarters of the Russian Federal Space Agency, the head of Roscosmos, Vladimir Popovkin (center left), and other Russian space officials spend time with the Expedition 31 prime and backup crew members April 26, 2012 prior to their departure May 2 for their launch site in Baikonur, Kazakhstan. On the right from top to bottom are Expedition 31 backup crewmembers Kevin Ford, Evgeny Tarelkin and Oleg Novitskiy, and prime crewmembers -- Soyuz Commander Gennady Padalka (right center), flight engineer Sergei Revin and NASA Flight Engineer Joe Acaba. Padalka, Revin and Acaba are scheduled to launch to the International Space Station May 15 in their Soyuz TMA-04M spacecraft. Photo credit: NASA